Copyright	Copyright (C) 2004-2011 John Goerzen
License	BSD-3-Clause
Stability	stable
Portability	portable
Safe Haskell	None
Language	Haskell2010

System.IO.HVFS

Contents

Implementation Classes / Types
Re-exported types from other modules
Orphan instances

Description

Haskell Virtual FS -- generic support for real or virtual filesystem in Haskell

The idea of this module is to provide virtualization of filesystem calls. In addition to the "real" system filesystem, you can also provide access to other, virtual, filesystems using the same set of calls. Examples of such virtual filesystems might include a remote FTP server, WebDAV server, a local Hashtable, a ConfigParser object, or any other data structure you can represent as a tree of named nodes containing strings.

Each HVFS function takes a HVFS "handle" (HVFS instance) as its first parameter. If you wish to operate on the standard system filesystem, you can just use SystemFS.

The MissingH.HVFS.IO.InstanceHelpers module contains some code to help you make your own HVFS instances.

The HVFSOpenable class works together with the System.IO.HVIO module to provide a complete virtual filesystem and I/O model that allows you to open up virtual filesystem files and act upon them in a manner similar to standard Handles.

Synopsis

class Show a => HVFS a where
- vGetCurrentDirectory :: a -> IO FilePath
- vSetCurrentDirectory :: a -> FilePath -> IO ()
- vGetDirectoryContents :: a -> FilePath -> IO [FilePath]
- vDoesFileExist :: a -> FilePath -> IO Bool
- vDoesDirectoryExist :: a -> FilePath -> IO Bool
- vDoesExist :: a -> FilePath -> IO Bool
- vCreateDirectory :: a -> FilePath -> IO ()
- vRemoveDirectory :: a -> FilePath -> IO ()
- vRenameDirectory :: a -> FilePath -> FilePath -> IO ()
- vRemoveFile :: a -> FilePath -> IO ()
- vRenameFile :: a -> FilePath -> FilePath -> IO ()
- vGetFileStatus :: a -> FilePath -> IO HVFSStatEncap
- vGetSymbolicLinkStatus :: a -> FilePath -> IO HVFSStatEncap
- vGetModificationTime :: a -> FilePath -> IO ClockTime
- vRaiseError :: a -> IOErrorType -> String -> Maybe FilePath -> IO c
- vCreateSymbolicLink :: a -> FilePath -> FilePath -> IO ()
- vReadSymbolicLink :: a -> FilePath -> IO FilePath
- vCreateLink :: a -> FilePath -> FilePath -> IO ()
class Show a => HVFSStat a where
- vDeviceID :: a -> DeviceID
- vFileID :: a -> FileID
- vFileMode :: a -> FileMode
- vLinkCount :: a -> LinkCount
- vFileOwner :: a -> UserID
- vFileGroup :: a -> GroupID
- vSpecialDeviceID :: a -> DeviceID
- vFileSize :: a -> FileOffset
- vAccessTime :: a -> EpochTime
- vModificationTime :: a -> EpochTime
- vStatusChangeTime :: a -> EpochTime
- vIsBlockDevice :: a -> Bool
- vIsCharacterDevice :: a -> Bool
- vIsNamedPipe :: a -> Bool
- vIsRegularFile :: a -> Bool
- vIsDirectory :: a -> Bool
- vIsSymbolicLink :: a -> Bool
- vIsSocket :: a -> Bool
class HVFS a => HVFSOpenable a where
- vOpen :: a -> FilePath -> IOMode -> IO HVFSOpenEncap
- vReadFile :: a -> FilePath -> IO String
- vWriteFile :: a -> FilePath -> String -> IO ()
- vOpenBinaryFile :: a -> FilePath -> IOMode -> IO HVFSOpenEncap
data HVFSOpenEncap = HVIO a => HVFSOpenEncap a
data HVFSStatEncap = HVFSStat a => HVFSStatEncap a
withStat :: HVFSStatEncap -> (forall a. HVFSStat a => a -> b) -> b
withOpen :: HVFSOpenEncap -> (forall a. HVIO a => a -> b) -> b
data SystemFS = SystemFS
type FilePath = String
type DeviceID = CDev
type FileID = CIno
type FileMode = CMode
type LinkCount = CNlink
type UserID = CUid
type GroupID = CGid
type FileOffset = COff
type EpochTime = CTime
data IOMode

Implementation Classes / Types

class Show a => HVFS a where Source #

The main HVFS class.

Default implementations of these functions are provided:

vGetModificationTime -- implemented in terms of vGetFileStatus
vRaiseError
vDoesFileExist -- implemented in terms of vGetFileStatus
vDoesDirectoryExist -- implemented in terms of vGetFileStatus
vDoesExist -- implemented in terms of vGetSymbolicLinkStatus
vGetSymbolicLinkStatus -- set to call vGetFileStatus.

Default implementations of all other functions will generate an isIllegalOperation error, since they are assumed to be un-implemented.

You should always provide at least a vGetFileStatus call, and almost certainly several of the others.

Most of these functions correspond to functions in System.Directory or System.Posix.Files. Please see detailed documentation on them there.

Minimal complete definition

vGetFileStatus

Methods

vGetCurrentDirectory :: a -> IO FilePath Source #

vSetCurrentDirectory :: a -> FilePath -> IO () Source #

vGetDirectoryContents :: a -> FilePath -> IO [FilePath] Source #

vDoesFileExist :: a -> FilePath -> IO Bool Source #

vDoesDirectoryExist :: a -> FilePath -> IO Bool Source #

vDoesExist :: a -> FilePath -> IO Bool Source #

True if the file exists, regardless of what type it is. This is even True if the given path is a broken symlink.

vCreateDirectory :: a -> FilePath -> IO () Source #

vRemoveDirectory :: a -> FilePath -> IO () Source #

vRenameDirectory :: a -> FilePath -> FilePath -> IO () Source #

vRemoveFile :: a -> FilePath -> IO () Source #

vRenameFile :: a -> FilePath -> FilePath -> IO () Source #

vGetFileStatus :: a -> FilePath -> IO HVFSStatEncap Source #

vGetSymbolicLinkStatus :: a -> FilePath -> IO HVFSStatEncap Source #

vGetModificationTime :: a -> FilePath -> IO ClockTime Source #

vRaiseError :: a -> IOErrorType -> String -> Maybe FilePath -> IO c Source #

Raise an error relating to actions on this class.

vCreateSymbolicLink :: a -> FilePath -> FilePath -> IO () Source #

vReadSymbolicLink :: a -> FilePath -> IO FilePath Source #

vCreateLink :: a -> FilePath -> FilePath -> IO () Source #

Instances

Instances details

HVFS SystemFS Source #
Instance details Defined in System.IO.HVFS Methods vGetCurrentDirectory :: SystemFS -> IO FilePath Source # vSetCurrentDirectory :: SystemFS -> FilePath -> IO () Source # vGetDirectoryContents :: SystemFS -> FilePath -> IO [FilePath] Source # vDoesFileExist :: SystemFS -> FilePath -> IO Bool Source # vDoesDirectoryExist :: SystemFS -> FilePath -> IO Bool Source # vDoesExist :: SystemFS -> FilePath -> IO Bool Source # vCreateDirectory :: SystemFS -> FilePath -> IO () Source # vRemoveDirectory :: SystemFS -> FilePath -> IO () Source # vRenameDirectory :: SystemFS -> FilePath -> FilePath -> IO () Source # vRemoveFile :: SystemFS -> FilePath -> IO () Source # vRenameFile :: SystemFS -> FilePath -> FilePath -> IO () Source # vGetFileStatus :: SystemFS -> FilePath -> IO HVFSStatEncap Source # vGetSymbolicLinkStatus :: SystemFS -> FilePath -> IO HVFSStatEncap Source # vGetModificationTime :: SystemFS -> FilePath -> IO ClockTime Source # vRaiseError :: SystemFS -> IOErrorType -> String -> Maybe FilePath -> IO c Source # vCreateSymbolicLink :: SystemFS -> FilePath -> FilePath -> IO () Source # vReadSymbolicLink :: SystemFS -> FilePath -> IO FilePath Source # vCreateLink :: SystemFS -> FilePath -> FilePath -> IO () Source #
HVFS MemoryVFS Source #
Instance details Defined in System.IO.HVFS.InstanceHelpers Methods vGetCurrentDirectory :: MemoryVFS -> IO FilePath Source # vSetCurrentDirectory :: MemoryVFS -> FilePath -> IO () Source # vGetDirectoryContents :: MemoryVFS -> FilePath -> IO [FilePath] Source # vDoesFileExist :: MemoryVFS -> FilePath -> IO Bool Source # vDoesDirectoryExist :: MemoryVFS -> FilePath -> IO Bool Source # vDoesExist :: MemoryVFS -> FilePath -> IO Bool Source # vCreateDirectory :: MemoryVFS -> FilePath -> IO () Source # vRemoveDirectory :: MemoryVFS -> FilePath -> IO () Source # vRenameDirectory :: MemoryVFS -> FilePath -> FilePath -> IO () Source # vRemoveFile :: MemoryVFS -> FilePath -> IO () Source # vRenameFile :: MemoryVFS -> FilePath -> FilePath -> IO () Source # vGetFileStatus :: MemoryVFS -> FilePath -> IO HVFSStatEncap Source # vGetSymbolicLinkStatus :: MemoryVFS -> FilePath -> IO HVFSStatEncap Source # vGetModificationTime :: MemoryVFS -> FilePath -> IO ClockTime Source # vRaiseError :: MemoryVFS -> IOErrorType -> String -> Maybe FilePath -> IO c Source # vCreateSymbolicLink :: MemoryVFS -> FilePath -> FilePath -> IO () Source # vReadSymbolicLink :: MemoryVFS -> FilePath -> IO FilePath Source # vCreateLink :: MemoryVFS -> FilePath -> FilePath -> IO () Source #
HVFS a => HVFS (HVFSChroot a) Source #
Instance details Defined in System.IO.HVFS.Combinators Methods vGetCurrentDirectory :: HVFSChroot a -> IO FilePath Source # vSetCurrentDirectory :: HVFSChroot a -> FilePath -> IO () Source # vGetDirectoryContents :: HVFSChroot a -> FilePath -> IO [FilePath] Source # vDoesFileExist :: HVFSChroot a -> FilePath -> IO Bool Source # vDoesDirectoryExist :: HVFSChroot a -> FilePath -> IO Bool Source # vDoesExist :: HVFSChroot a -> FilePath -> IO Bool Source # vCreateDirectory :: HVFSChroot a -> FilePath -> IO () Source # vRemoveDirectory :: HVFSChroot a -> FilePath -> IO () Source # vRenameDirectory :: HVFSChroot a -> FilePath -> FilePath -> IO () Source # vRemoveFile :: HVFSChroot a -> FilePath -> IO () Source # vRenameFile :: HVFSChroot a -> FilePath -> FilePath -> IO () Source # vGetFileStatus :: HVFSChroot a -> FilePath -> IO HVFSStatEncap Source # vGetSymbolicLinkStatus :: HVFSChroot a -> FilePath -> IO HVFSStatEncap Source # vGetModificationTime :: HVFSChroot a -> FilePath -> IO ClockTime Source # vRaiseError :: HVFSChroot a -> IOErrorType -> String -> Maybe FilePath -> IO c Source # vCreateSymbolicLink :: HVFSChroot a -> FilePath -> FilePath -> IO () Source # vReadSymbolicLink :: HVFSChroot a -> FilePath -> IO FilePath Source # vCreateLink :: HVFSChroot a -> FilePath -> FilePath -> IO () Source #
HVFS a => HVFS (HVFSReadOnly a) Source #
Instance details Defined in System.IO.HVFS.Combinators Methods vGetCurrentDirectory :: HVFSReadOnly a -> IO FilePath Source # vSetCurrentDirectory :: HVFSReadOnly a -> FilePath -> IO () Source # vGetDirectoryContents :: HVFSReadOnly a -> FilePath -> IO [FilePath] Source # vDoesFileExist :: HVFSReadOnly a -> FilePath -> IO Bool Source # vDoesDirectoryExist :: HVFSReadOnly a -> FilePath -> IO Bool Source # vDoesExist :: HVFSReadOnly a -> FilePath -> IO Bool Source # vCreateDirectory :: HVFSReadOnly a -> FilePath -> IO () Source # vRemoveDirectory :: HVFSReadOnly a -> FilePath -> IO () Source # vRenameDirectory :: HVFSReadOnly a -> FilePath -> FilePath -> IO () Source # vRemoveFile :: HVFSReadOnly a -> FilePath -> IO () Source # vRenameFile :: HVFSReadOnly a -> FilePath -> FilePath -> IO () Source # vGetFileStatus :: HVFSReadOnly a -> FilePath -> IO HVFSStatEncap Source # vGetSymbolicLinkStatus :: HVFSReadOnly a -> FilePath -> IO HVFSStatEncap Source # vGetModificationTime :: HVFSReadOnly a -> FilePath -> IO ClockTime Source # vRaiseError :: HVFSReadOnly a -> IOErrorType -> String -> Maybe FilePath -> IO c Source # vCreateSymbolicLink :: HVFSReadOnly a -> FilePath -> FilePath -> IO () Source # vReadSymbolicLink :: HVFSReadOnly a -> FilePath -> IO FilePath Source # vCreateLink :: HVFSReadOnly a -> FilePath -> FilePath -> IO () Source #

class Show a => HVFSStat a where Source #

Evaluating types of files and information about them.

This corresponds to the System.Posix.Types.FileStatus type, and indeed, that is one instance of this class.

Inplementators must, at minimum, implement vIsDirectory and vIsRegularFile.

Default implementations of everything else are provided, returning reasonable values.

A default implementation of this is not currently present on Windows.

Minimal complete definition

vIsRegularFile, vIsDirectory

Methods

vDeviceID :: a -> DeviceID Source #

vFileID :: a -> FileID Source #

vFileMode :: a -> FileMode Source #

Refers to file permissions, NOT the st_mode field from stat(2)

vLinkCount :: a -> LinkCount Source #

vFileOwner :: a -> UserID Source #

vFileGroup :: a -> GroupID Source #

vSpecialDeviceID :: a -> DeviceID Source #

vFileSize :: a -> FileOffset Source #

vAccessTime :: a -> EpochTime Source #

vModificationTime :: a -> EpochTime Source #

vStatusChangeTime :: a -> EpochTime Source #

vIsBlockDevice :: a -> Bool Source #

vIsCharacterDevice :: a -> Bool Source #

vIsNamedPipe :: a -> Bool Source #

vIsRegularFile :: a -> Bool Source #

vIsDirectory :: a -> Bool Source #

vIsSymbolicLink :: a -> Bool Source #

vIsSocket :: a -> Bool Source #

Instances

Instances details

HVFSStat SimpleStat Source #
Instance details Defined in System.IO.HVFS.InstanceHelpers Methods vDeviceID :: SimpleStat -> DeviceID Source # vFileID :: SimpleStat -> FileID Source # vFileMode :: SimpleStat -> FileMode Source # vLinkCount :: SimpleStat -> LinkCount Source # vFileOwner :: SimpleStat -> UserID Source # vFileGroup :: SimpleStat -> GroupID Source # vSpecialDeviceID :: SimpleStat -> DeviceID Source # vFileSize :: SimpleStat -> FileOffset Source # vAccessTime :: SimpleStat -> EpochTime Source # vModificationTime :: SimpleStat -> EpochTime Source # vStatusChangeTime :: SimpleStat -> EpochTime Source # vIsBlockDevice :: SimpleStat -> Bool Source # vIsCharacterDevice :: SimpleStat -> Bool Source # vIsNamedPipe :: SimpleStat -> Bool Source # vIsRegularFile :: SimpleStat -> Bool Source # vIsDirectory :: SimpleStat -> Bool Source # vIsSymbolicLink :: SimpleStat -> Bool Source # vIsSocket :: SimpleStat -> Bool Source #
HVFSStat FileStatus Source #
Instance details Defined in System.IO.HVFS Methods vDeviceID :: FileStatus -> DeviceID Source # vFileID :: FileStatus -> FileID Source # vFileMode :: FileStatus -> FileMode Source # vLinkCount :: FileStatus -> LinkCount Source # vFileOwner :: FileStatus -> UserID Source # vFileGroup :: FileStatus -> GroupID Source # vSpecialDeviceID :: FileStatus -> DeviceID Source # vFileSize :: FileStatus -> FileOffset Source # vAccessTime :: FileStatus -> EpochTime Source # vModificationTime :: FileStatus -> EpochTime Source # vStatusChangeTime :: FileStatus -> EpochTime Source # vIsBlockDevice :: FileStatus -> Bool Source # vIsCharacterDevice :: FileStatus -> Bool Source # vIsNamedPipe :: FileStatus -> Bool Source # vIsRegularFile :: FileStatus -> Bool Source # vIsDirectory :: FileStatus -> Bool Source # vIsSymbolicLink :: FileStatus -> Bool Source # vIsSocket :: FileStatus -> Bool Source #

class HVFS a => HVFSOpenable a where Source #

Types that can open a HVIO object should be instances of this class. You need only implement vOpen.

Minimal complete definition

vOpen

Methods

vOpen :: a -> FilePath -> IOMode -> IO HVFSOpenEncap Source #

vReadFile :: a -> FilePath -> IO String Source #

vWriteFile :: a -> FilePath -> String -> IO () Source #

vOpenBinaryFile :: a -> FilePath -> IOMode -> IO HVFSOpenEncap Source #

Instances

Instances details

HVFSOpenable SystemFS Source #
Instance details Defined in System.IO.HVFS Methods vOpen :: SystemFS -> FilePath -> IOMode -> IO HVFSOpenEncap Source # vReadFile :: SystemFS -> FilePath -> IO String Source # vWriteFile :: SystemFS -> FilePath -> String -> IO () Source # vOpenBinaryFile :: SystemFS -> FilePath -> IOMode -> IO HVFSOpenEncap Source #
HVFSOpenable MemoryVFS Source #
Instance details Defined in System.IO.HVFS.InstanceHelpers Methods vOpen :: MemoryVFS -> FilePath -> IOMode -> IO HVFSOpenEncap Source # vReadFile :: MemoryVFS -> FilePath -> IO String Source # vWriteFile :: MemoryVFS -> FilePath -> String -> IO () Source # vOpenBinaryFile :: MemoryVFS -> FilePath -> IOMode -> IO HVFSOpenEncap Source #
HVFSOpenable a => HVFSOpenable (HVFSChroot a) Source #
Instance details Defined in System.IO.HVFS.Combinators Methods vOpen :: HVFSChroot a -> FilePath -> IOMode -> IO HVFSOpenEncap Source # vReadFile :: HVFSChroot a -> FilePath -> IO String Source # vWriteFile :: HVFSChroot a -> FilePath -> String -> IO () Source # vOpenBinaryFile :: HVFSChroot a -> FilePath -> IOMode -> IO HVFSOpenEncap Source #
HVFSOpenable a => HVFSOpenable (HVFSReadOnly a) Source #
Instance details Defined in System.IO.HVFS.Combinators Methods vOpen :: HVFSReadOnly a -> FilePath -> IOMode -> IO HVFSOpenEncap Source # vReadFile :: HVFSReadOnly a -> FilePath -> IO String Source # vWriteFile :: HVFSReadOnly a -> FilePath -> String -> IO () Source # vOpenBinaryFile :: HVFSReadOnly a -> FilePath -> IOMode -> IO HVFSOpenEncap Source #

data HVFSOpenEncap Source #

Similar to HVFSStatEncap, but for vOpen result.

Constructors

HVIO a => HVFSOpenEncap a

data HVFSStatEncap Source #

Encapsulate a HVFSStat result. This is required due to Haskell typing restrictions. You can get at it with:

case encap of
   HVFSStatEncap x -> -- now use x

Constructors

HVFSStat a => HVFSStatEncap a

withStat :: HVFSStatEncap -> (forall a. HVFSStat a => a -> b) -> b Source #

Convenience function for working with stat -- takes a stat result and a function that uses it, and returns the result.

Here is an example from the HVFS source:

   vGetModificationTime fs fp =
      do s <- vGetFileStatus fs fp
         return $ epochToClockTime (withStat s vModificationTime)

See epochToClockTime for more information.

withOpen :: HVFSOpenEncap -> (forall a. HVIO a => a -> b) -> b Source #

Similar to withStat, but for the vOpen result.

data SystemFS Source #

Constructors

SystemFS

Instances

Instances details

HVFS SystemFS Source #
Instance details Defined in System.IO.HVFS Methods vGetCurrentDirectory :: SystemFS -> IO FilePath Source # vSetCurrentDirectory :: SystemFS -> FilePath -> IO () Source # vGetDirectoryContents :: SystemFS -> FilePath -> IO [FilePath] Source # vDoesFileExist :: SystemFS -> FilePath -> IO Bool Source # vDoesDirectoryExist :: SystemFS -> FilePath -> IO Bool Source # vDoesExist :: SystemFS -> FilePath -> IO Bool Source # vCreateDirectory :: SystemFS -> FilePath -> IO () Source # vRemoveDirectory :: SystemFS -> FilePath -> IO () Source # vRenameDirectory :: SystemFS -> FilePath -> FilePath -> IO () Source # vRemoveFile :: SystemFS -> FilePath -> IO () Source # vRenameFile :: SystemFS -> FilePath -> FilePath -> IO () Source # vGetFileStatus :: SystemFS -> FilePath -> IO HVFSStatEncap Source # vGetSymbolicLinkStatus :: SystemFS -> FilePath -> IO HVFSStatEncap Source # vGetModificationTime :: SystemFS -> FilePath -> IO ClockTime Source # vRaiseError :: SystemFS -> IOErrorType -> String -> Maybe FilePath -> IO c Source # vCreateSymbolicLink :: SystemFS -> FilePath -> FilePath -> IO () Source # vReadSymbolicLink :: SystemFS -> FilePath -> IO FilePath Source # vCreateLink :: SystemFS -> FilePath -> FilePath -> IO () Source #
HVFSOpenable SystemFS Source #
Instance details Defined in System.IO.HVFS Methods vOpen :: SystemFS -> FilePath -> IOMode -> IO HVFSOpenEncap Source # vReadFile :: SystemFS -> FilePath -> IO String Source # vWriteFile :: SystemFS -> FilePath -> String -> IO () Source # vOpenBinaryFile :: SystemFS -> FilePath -> IOMode -> IO HVFSOpenEncap Source #
Show SystemFS Source #
Instance details Defined in System.IO.HVFS Methods showsPrec :: Int -> SystemFS -> ShowS show :: SystemFS -> String showList :: [SystemFS] -> ShowS
Eq SystemFS Source #
Instance details Defined in System.IO.HVFS Methods (==) :: SystemFS -> SystemFS -> Bool (/=) :: SystemFS -> SystemFS -> Bool

Re-exported types from other modules

type FilePath = String #

type DeviceID = CDev #

type FileID = CIno #

type FileMode = CMode #

type LinkCount = CNlink #

type UserID = CUid #

type GroupID = CGid #

type FileOffset = COff #

type EpochTime = CTime #

data IOMode #

Instances

Instances details

Enum IOMode
Instance details Defined in GHC.Internal.IO.IOMode Methods succ :: IOMode -> IOMode pred :: IOMode -> IOMode toEnum :: Int -> IOMode fromEnum :: IOMode -> Int enumFrom :: IOMode -> [IOMode] enumFromThen :: IOMode -> IOMode -> [IOMode] enumFromTo :: IOMode -> IOMode -> [IOMode] enumFromThenTo :: IOMode -> IOMode -> IOMode -> [IOMode]
Ix IOMode
Instance details Defined in GHC.Internal.IO.IOMode Methods range :: (IOMode, IOMode) -> [IOMode] index :: (IOMode, IOMode) -> IOMode -> Int unsafeIndex :: (IOMode, IOMode) -> IOMode -> Int inRange :: (IOMode, IOMode) -> IOMode -> Bool rangeSize :: (IOMode, IOMode) -> Int unsafeRangeSize :: (IOMode, IOMode) -> Int
Read IOMode
Instance details Defined in GHC.Internal.IO.IOMode Methods readsPrec :: Int -> ReadS IOMode readList :: ReadS [IOMode] readPrec :: ReadPrec IOMode readListPrec :: ReadPrec [IOMode]
Show IOMode
Instance details Defined in GHC.Internal.IO.IOMode Methods showsPrec :: Int -> IOMode -> ShowS show :: IOMode -> String showList :: [IOMode] -> ShowS
Eq IOMode
Instance details Defined in GHC.Internal.IO.IOMode Methods (==) :: IOMode -> IOMode -> Bool (/=) :: IOMode -> IOMode -> Bool
Ord IOMode
Instance details Defined in GHC.Internal.IO.IOMode Methods compare :: IOMode -> IOMode -> Ordering (<) :: IOMode -> IOMode -> Bool (<=) :: IOMode -> IOMode -> Bool (>) :: IOMode -> IOMode -> Bool (>=) :: IOMode -> IOMode -> Bool max :: IOMode -> IOMode -> IOMode min :: IOMode -> IOMode -> IOMode

Orphan instances

Show FileStatus Source #
Instance details Methods showsPrec :: Int -> FileStatus -> ShowS show :: FileStatus -> String showList :: [FileStatus] -> ShowS